QPlainTextEdit 如何文字居中 [复制链接]

如题。
QPlainText 不包含 setAligment 功能？？

QPlainTextEdit 里有个 QTextDocument×

QTextDoucment->setDefaultTextOption( QTextOption(Qt::AlignCenter) );

this will be ok.

void QPlainTextEdit::setDocument ( QTextDocument * document )

Makes document the new document of the text editor.

The parent QObject of the provided document remains the owner of the object. If the current document is a child of the text editor, then it is deleted.

The document must have a document layout that inherits QPlainTextDocumentLayout (see QTextDocument::setDocumentLayout()).

See also document().
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ui.PlainCmd->setDocument(QTextDocument::setDefaultTextOption(QTextOptio(Qt::AlignCenter)));

如何写，好像不行啊！

ui.PlainCmd(QPlainTextEdit控件名称)

textEdit->setAlignment(Qt:: AlignCenter);